Just trying out some new templates and I notice, that the width of Tinymce is not fixed, not even in the supplied templates.
If you make Tinymce wider oder narrower, it will stay that way even when you are changing templates (can be seen nicely in the demo).
Tinymce somewho retains the width, it seems this is stored in some php cache???
So once the webmaster inadvertently changes the width, the Wysywig gets corrupted.
Hm. is this a feature or a bug?
CKeditor doesn't have it, here the editor retains the correct width.

Hi Svasti, happy new year!
There is a cookie TinyMCE_text_size holding the value, which is only set when changing the width by dragging..
IMHO it's a feature. Non touched it takes the width provided, see the responsiveHTML template. If touched it stays (the width) session life time. Log out and in again and it's resetted.

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There is another disadvantage of tinymce. It has no preview mode - ckeditor 4 has a plugin for that.
After switching from editormode to preview one looses the editorposition.
A help wold be a button which opens the edited text in the preview mode in a new target-window